Home / 14,702.19-20,288.52-7,987.70

Finding the Fourth Proportional to 14,702.19, 20,288.52 and 7,987.70

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Solution

The fourth proportional to 14,702.19, 20,288.52 and 7,987.70 is: 11,022.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.19 : 20,288.52 = 7,987.70 : x
  2. Step 2: Convert to fraction form
    14,702.19/20,288.52 = 7,987.70/x
  3. Step 3: Cross multiply
    14,702.19x = 20,288.52 × 7,987.70
  4. Step 4: Simplify right side
    14,702.19x = 162,058,509.76
  5. Step 5: Solve for x
    x = 162,058,509.76/14,702.19
  6. Step 6: Final answer
    x = 11,022.75

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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.