Home / 10,886.40-16,335-4,312.44

Finding the Fourth Proportional to 10,886.40, 16,335 and 4,312.44

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Solution

The fourth proportional to 10,886.40, 16,335 and 4,312.44 is: 6,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.40 : 16,335 = 4,312.44 : x
  2. Step 2: Convert to fraction form
    10,886.40/16,335 = 4,312.44/x
  3. Step 3: Cross multiply
    10,886.40x = 16,335 × 4,312.44
  4. Step 4: Simplify right side
    10,886.40x = 70,443,707.40
  5. Step 5: Solve for x
    x = 70,443,707.40/10,886.40
  6. Step 6: Final answer
    x = 6,470.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.