Home / 15,547.14-21,455.28-9,575.42

Finding the Fourth Proportional to 15,547.14, 21,455.28 and 9,575.42

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Solution

The fourth proportional to 15,547.14, 21,455.28 and 9,575.42 is: 13,214.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.14 : 21,455.28 = 9,575.42 : x
  2. Step 2: Convert to fraction form
    15,547.14/21,455.28 = 9,575.42/x
  3. Step 3: Cross multiply
    15,547.14x = 21,455.28 × 9,575.42
  4. Step 4: Simplify right side
    15,547.14x = 205,443,209.94
  5. Step 5: Solve for x
    x = 205,443,209.94/15,547.14
  6. Step 6: Final answer
    x = 13,214.21

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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.