Home / 12,916.74-17,825.69-10,117.38

Finding the Fourth Proportional to 12,916.74, 17,825.69 and 10,117.38

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Solution

The fourth proportional to 12,916.74, 17,825.69 and 10,117.38 is: 13,962.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.74 : 17,825.69 = 10,117.38 : x
  2. Step 2: Convert to fraction form
    12,916.74/17,825.69 = 10,117.38/x
  3. Step 3: Cross multiply
    12,916.74x = 17,825.69 × 10,117.38
  4. Step 4: Simplify right side
    12,916.74x = 180,349,279.49
  5. Step 5: Solve for x
    x = 180,349,279.49/12,916.74
  6. Step 6: Final answer
    x = 13,962.45

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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.