Home / 15,656.16-21,606-8,582.52

Finding the Fourth Proportional to 15,656.16, 21,606 and 8,582.52

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Solution

The fourth proportional to 15,656.16, 21,606 and 8,582.52 is: 11,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.16 : 21,606 = 8,582.52 : x
  2. Step 2: Convert to fraction form
    15,656.16/21,606 = 8,582.52/x
  3. Step 3: Cross multiply
    15,656.16x = 21,606 × 8,582.52
  4. Step 4: Simplify right side
    15,656.16x = 185,433,927.12
  5. Step 5: Solve for x
    x = 185,433,927.12/15,656.16
  6. Step 6: Final answer
    x = 11,844.15

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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.