Home / 13,412.23-18,510.03-7,445.06

Finding the Fourth Proportional to 13,412.23, 18,510.03 and 7,445.06

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Solution

The fourth proportional to 13,412.23, 18,510.03 and 7,445.06 is: 10,274.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.23 : 18,510.03 = 7,445.06 : x
  2. Step 2: Convert to fraction form
    13,412.23/18,510.03 = 7,445.06/x
  3. Step 3: Cross multiply
    13,412.23x = 18,510.03 × 7,445.06
  4. Step 4: Simplify right side
    13,412.23x = 137,808,283.95
  5. Step 5: Solve for x
    x = 137,808,283.95/13,412.23
  6. Step 6: Final answer
    x = 10,274.82

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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.