Home / 13,526.75-18,666.56-7,558.46

Finding the Fourth Proportional to 13,526.75, 18,666.56 and 7,558.46

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Solution

The fourth proportional to 13,526.75, 18,666.56 and 7,558.46 is: 10,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.75 : 18,666.56 = 7,558.46 : x
  2. Step 2: Convert to fraction form
    13,526.75/18,666.56 = 7,558.46/x
  3. Step 3: Cross multiply
    13,526.75x = 18,666.56 × 7,558.46
  4. Step 4: Simplify right side
    13,526.75x = 141,090,315.97
  5. Step 5: Solve for x
    x = 141,090,315.97/13,526.75
  6. Step 6: Final answer
    x = 10,430.47

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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.