Home / 13,132.92-18,126.54-7,547.16

Finding the Fourth Proportional to 13,132.92, 18,126.54 and 7,547.16

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Solution

The fourth proportional to 13,132.92, 18,126.54 and 7,547.16 is: 10,416.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.92 : 18,126.54 = 7,547.16 : x
  2. Step 2: Convert to fraction form
    13,132.92/18,126.54 = 7,547.16/x
  3. Step 3: Cross multiply
    13,132.92x = 18,126.54 × 7,547.16
  4. Step 4: Simplify right side
    13,132.92x = 136,803,897.63
  5. Step 5: Solve for x
    x = 136,803,897.63/13,132.92
  6. Step 6: Final answer
    x = 10,416.87

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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.