Home / 13,426.99-18,529.23-7,459.21

Finding the Fourth Proportional to 13,426.99, 18,529.23 and 7,459.21

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Solution

The fourth proportional to 13,426.99, 18,529.23 and 7,459.21 is: 10,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.99 : 18,529.23 = 7,459.21 : x
  2. Step 2: Convert to fraction form
    13,426.99/18,529.23 = 7,459.21/x
  3. Step 3: Cross multiply
    13,426.99x = 18,529.23 × 7,459.21
  4. Step 4: Simplify right side
    13,426.99x = 138,213,417.71
  5. Step 5: Solve for x
    x = 138,213,417.71/13,426.99
  6. Step 6: Final answer
    x = 10,293.70

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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.