Home / 13,426.02-18,526.80-7,457.34

Finding the Fourth Proportional to 13,426.02, 18,526.80 and 7,457.34

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Solution

The fourth proportional to 13,426.02, 18,526.80 and 7,457.34 is: 10,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.02 : 18,526.80 = 7,457.34 : x
  2. Step 2: Convert to fraction form
    13,426.02/18,526.80 = 7,457.34/x
  3. Step 3: Cross multiply
    13,426.02x = 18,526.80 × 7,457.34
  4. Step 4: Simplify right side
    13,426.02x = 138,160,646.71
  5. Step 5: Solve for x
    x = 138,160,646.71/13,426.02
  6. Step 6: Final answer
    x = 10,290.51

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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.