Home / 14,445.40-21,692.80-8,931.36

Finding the Fourth Proportional to 14,445.40, 21,692.80 and 8,931.36

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Solution

The fourth proportional to 14,445.40, 21,692.80 and 8,931.36 is: 13,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,445.40 : 21,692.80 = 8,931.36 : x
  2. Step 2: Convert to fraction form
    14,445.40/21,692.80 = 8,931.36/x
  3. Step 3: Cross multiply
    14,445.40x = 21,692.80 × 8,931.36
  4. Step 4: Simplify right side
    14,445.40x = 193,746,206.21
  5. Step 5: Solve for x
    x = 193,746,206.21/14,445.40
  6. Step 6: Final answer
    x = 13,412.31

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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.