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Finding the Fourth Proportional to 9,875.60, 14,801.40 and 4,029.20

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Solution

The fourth proportional to 9,875.60, 14,801.40 and 4,029.20 is: 6,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,875.60 : 14,801.40 = 4,029.20 : x
  2. Step 2: Convert to fraction form
    9,875.60/14,801.40 = 4,029.20/x
  3. Step 3: Cross multiply
    9,875.60x = 14,801.40 × 4,029.20
  4. Step 4: Simplify right side
    9,875.60x = 59,637,800.88
  5. Step 5: Solve for x
    x = 59,637,800.88/9,875.60
  6. Step 6: Final answer
    x = 6,038.90

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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.