Home / 15,459.95-21,335.56-9,792.63

Finding the Fourth Proportional to 15,459.95, 21,335.56 and 9,792.63

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Solution

The fourth proportional to 15,459.95, 21,335.56 and 9,792.63 is: 13,514.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.95 : 21,335.56 = 9,792.63 : x
  2. Step 2: Convert to fraction form
    15,459.95/21,335.56 = 9,792.63/x
  3. Step 3: Cross multiply
    15,459.95x = 21,335.56 × 9,792.63
  4. Step 4: Simplify right side
    15,459.95x = 208,931,244.92
  5. Step 5: Solve for x
    x = 208,931,244.92/15,459.95
  6. Step 6: Final answer
    x = 13,514.35

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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.