Home / 13,528.85-18,670.64-7,560.99

Finding the Fourth Proportional to 13,528.85, 18,670.64 and 7,560.99

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Solution

The fourth proportional to 13,528.85, 18,670.64 and 7,560.99 is: 10,434.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.85 : 18,670.64 = 7,560.99 : x
  2. Step 2: Convert to fraction form
    13,528.85/18,670.64 = 7,560.99/x
  3. Step 3: Cross multiply
    13,528.85x = 18,670.64 × 7,560.99
  4. Step 4: Simplify right side
    13,528.85x = 141,168,484.53
  5. Step 5: Solve for x
    x = 141,168,484.53/13,528.85
  6. Step 6: Final answer
    x = 10,434.63

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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.