Home / 18,457.40-25,468.93-10,390.07

Finding the Fourth Proportional to 18,457.40, 25,468.93 and 10,390.07

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Solution

The fourth proportional to 18,457.40, 25,468.93 and 10,390.07 is: 14,337.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.40 : 25,468.93 = 10,390.07 : x
  2. Step 2: Convert to fraction form
    18,457.40/25,468.93 = 10,390.07/x
  3. Step 3: Cross multiply
    18,457.40x = 25,468.93 × 10,390.07
  4. Step 4: Simplify right side
    18,457.40x = 264,623,965.53
  5. Step 5: Solve for x
    x = 264,623,965.53/18,457.40
  6. Step 6: Final answer
    x = 14,337.01

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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.