Home / 8,680,943.28-11,979,681.12-4,813,365

Finding the Fourth Proportional to 8,680,943.28, 11,979,681.12 and 4,813,365

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Solution

The fourth proportional to 8,680,943.28, 11,979,681.12 and 4,813,365 is: 6,642,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,943.28 : 11,979,681.12 = 4,813,365 : x
  2. Step 2: Convert to fraction form
    8,680,943.28/11,979,681.12 = 4,813,365/x
  3. Step 3: Cross multiply
    8,680,943.28x = 11,979,681.12 × 4,813,365
  4. Step 4: Simplify right side
    8,680,943.28x = 57,662,577,814,168.80
  5. Step 5: Solve for x
    x = 57,662,577,814,168.80/8,680,943.28
  6. Step 6: Final answer
    x = 6,642,432.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.