Home / 13,055.10-18,008.57-8,266.25

Finding the Fourth Proportional to 13,055.10, 18,008.57 and 8,266.25

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Solution

The fourth proportional to 13,055.10, 18,008.57 and 8,266.25 is: 11,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.10 : 18,008.57 = 8,266.25 : x
  2. Step 2: Convert to fraction form
    13,055.10/18,008.57 = 8,266.25/x
  3. Step 3: Cross multiply
    13,055.10x = 18,008.57 × 8,266.25
  4. Step 4: Simplify right side
    13,055.10x = 148,863,341.76
  5. Step 5: Solve for x
    x = 148,863,341.76/13,055.10
  6. Step 6: Final answer
    x = 11,402.70

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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.