Home / 9,985.16-14,977.78-2,589.10

Finding the Fourth Proportional to 9,985.16, 14,977.78 and 2,589.10

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Solution

The fourth proportional to 9,985.16, 14,977.78 and 2,589.10 is: 3,883.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.16 : 14,977.78 = 2,589.10 : x
  2. Step 2: Convert to fraction form
    9,985.16/14,977.78 = 2,589.10/x
  3. Step 3: Cross multiply
    9,985.16x = 14,977.78 × 2,589.10
  4. Step 4: Simplify right side
    9,985.16x = 38,778,970.20
  5. Step 5: Solve for x
    x = 38,778,970.20/9,985.16
  6. Step 6: Final answer
    x = 3,883.66

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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.