Home / 10,492.20-14,479.12-5,776.40

Finding the Fourth Proportional to 10,492.20, 14,479.12 and 5,776.40

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Solution

The fourth proportional to 10,492.20, 14,479.12 and 5,776.40 is: 7,971.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,492.20 : 14,479.12 = 5,776.40 : x
  2. Step 2: Convert to fraction form
    10,492.20/14,479.12 = 5,776.40/x
  3. Step 3: Cross multiply
    10,492.20x = 14,479.12 × 5,776.40
  4. Step 4: Simplify right side
    10,492.20x = 83,637,188.77
  5. Step 5: Solve for x
    x = 83,637,188.77/10,492.20
  6. Step 6: Final answer
    x = 7,971.37

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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.