Home / 15,862.58-21,885.98-9,486.57

Finding the Fourth Proportional to 15,862.58, 21,885.98 and 9,486.57

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Solution

The fourth proportional to 15,862.58, 21,885.98 and 9,486.57 is: 13,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862.58 : 21,885.98 = 9,486.57 : x
  2. Step 2: Convert to fraction form
    15,862.58/21,885.98 = 9,486.57/x
  3. Step 3: Cross multiply
    15,862.58x = 21,885.98 × 9,486.57
  4. Step 4: Simplify right side
    15,862.58x = 207,622,881.29
  5. Step 5: Solve for x
    x = 207,622,881.29/15,862.58
  6. Step 6: Final answer
    x = 13,088.85

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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.