Home / 9,928.77-14,897.01-4,378.20

Finding the Fourth Proportional to 9,928.77, 14,897.01 and 4,378.20

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Solution

The fourth proportional to 9,928.77, 14,897.01 and 4,378.20 is: 6,569.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.77 : 14,897.01 = 4,378.20 : x
  2. Step 2: Convert to fraction form
    9,928.77/14,897.01 = 4,378.20/x
  3. Step 3: Cross multiply
    9,928.77x = 14,897.01 × 4,378.20
  4. Step 4: Simplify right side
    9,928.77x = 65,222,049.74
  5. Step 5: Solve for x
    x = 65,222,049.74/9,928.77
  6. Step 6: Final answer
    x = 6,569.00

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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.