Home / 10,531.17-15,783.12-4,283.91

Finding the Fourth Proportional to 10,531.17, 15,783.12 and 4,283.91

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Solution

The fourth proportional to 10,531.17, 15,783.12 and 4,283.91 is: 6,420.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.17 : 15,783.12 = 4,283.91 : x
  2. Step 2: Convert to fraction form
    10,531.17/15,783.12 = 4,283.91/x
  3. Step 3: Cross multiply
    10,531.17x = 15,783.12 × 4,283.91
  4. Step 4: Simplify right side
    10,531.17x = 67,613,465.60
  5. Step 5: Solve for x
    x = 67,613,465.60/10,531.17
  6. Step 6: Final answer
    x = 6,420.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.