Home / 10,860.48-14,985-6,143.04

Finding the Fourth Proportional to 10,860.48, 14,985 and 6,143.04

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Solution

The fourth proportional to 10,860.48, 14,985 and 6,143.04 is: 8,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.48 : 14,985 = 6,143.04 : x
  2. Step 2: Convert to fraction form
    10,860.48/14,985 = 6,143.04/x
  3. Step 3: Cross multiply
    10,860.48x = 14,985 × 6,143.04
  4. Step 4: Simplify right side
    10,860.48x = 92,053,454.40
  5. Step 5: Solve for x
    x = 92,053,454.40/10,860.48
  6. Step 6: Final answer
    x = 8,476.00

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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.