Home / 10,862.73-14,985.54-6,386.40

Finding the Fourth Proportional to 10,862.73, 14,985.54 and 6,386.40

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Solution

The fourth proportional to 10,862.73, 14,985.54 and 6,386.40 is: 8,810.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.73 : 14,985.54 = 6,386.40 : x
  2. Step 2: Convert to fraction form
    10,862.73/14,985.54 = 6,386.40/x
  3. Step 3: Cross multiply
    10,862.73x = 14,985.54 × 6,386.40
  4. Step 4: Simplify right side
    10,862.73x = 95,703,652.66
  5. Step 5: Solve for x
    x = 95,703,652.66/10,862.73
  6. Step 6: Final answer
    x = 8,810.28

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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.