Home / 12,715.60-17,547.48-7,126.48

Finding the Fourth Proportional to 12,715.60, 17,547.48 and 7,126.48

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Solution

The fourth proportional to 12,715.60, 17,547.48 and 7,126.48 is: 9,834.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.60 : 17,547.48 = 7,126.48 : x
  2. Step 2: Convert to fraction form
    12,715.60/17,547.48 = 7,126.48/x
  3. Step 3: Cross multiply
    12,715.60x = 17,547.48 × 7,126.48
  4. Step 4: Simplify right side
    12,715.60x = 125,051,765.27
  5. Step 5: Solve for x
    x = 125,051,765.27/12,715.60
  6. Step 6: Final answer
    x = 9,834.52

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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.