Home / 9,909.95-14,856.55-4,642.20

Finding the Fourth Proportional to 9,909.95, 14,856.55 and 4,642.20

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Solution

The fourth proportional to 9,909.95, 14,856.55 and 4,642.20 is: 6,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,909.95 : 14,856.55 = 4,642.20 : x
  2. Step 2: Convert to fraction form
    9,909.95/14,856.55 = 4,642.20/x
  3. Step 3: Cross multiply
    9,909.95x = 14,856.55 × 4,642.20
  4. Step 4: Simplify right side
    9,909.95x = 68,967,064.80
  5. Step 5: Solve for x
    x = 68,967,064.80/9,909.95
  6. Step 6: Final answer
    x = 6,959.38

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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.