Home / 7,869.02-10,857.98-5,038.88

Finding the Fourth Proportional to 7,869.02, 10,857.98 and 5,038.88

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Solution

The fourth proportional to 7,869.02, 10,857.98 and 5,038.88 is: 6,952.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.02 : 10,857.98 = 5,038.88 : x
  2. Step 2: Convert to fraction form
    7,869.02/10,857.98 = 5,038.88/x
  3. Step 3: Cross multiply
    7,869.02x = 10,857.98 × 5,038.88
  4. Step 4: Simplify right side
    7,869.02x = 54,712,058.26
  5. Step 5: Solve for x
    x = 54,712,058.26/7,869.02
  6. Step 6: Final answer
    x = 6,952.84

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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.