Home / 19,261.18-28,899.06-8,870.50

Finding the Fourth Proportional to 19,261.18, 28,899.06 and 8,870.50

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Solution

The fourth proportional to 19,261.18, 28,899.06 and 8,870.50 is: 13,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.18 : 28,899.06 = 8,870.50 : x
  2. Step 2: Convert to fraction form
    19,261.18/28,899.06 = 8,870.50/x
  3. Step 3: Cross multiply
    19,261.18x = 28,899.06 × 8,870.50
  4. Step 4: Simplify right side
    19,261.18x = 256,349,111.73
  5. Step 5: Solve for x
    x = 256,349,111.73/19,261.18
  6. Step 6: Final answer
    x = 13,309.11

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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.