Home / 9,705.05-13,393.45-5,457.45

Finding the Fourth Proportional to 9,705.05, 13,393.45 and 5,457.45

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Solution

The fourth proportional to 9,705.05, 13,393.45 and 5,457.45 is: 7,531.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,705.05 : 13,393.45 = 5,457.45 : x
  2. Step 2: Convert to fraction form
    9,705.05/13,393.45 = 5,457.45/x
  3. Step 3: Cross multiply
    9,705.05x = 13,393.45 × 5,457.45
  4. Step 4: Simplify right side
    9,705.05x = 73,094,085.81
  5. Step 5: Solve for x
    x = 73,094,085.81/9,705.05
  6. Step 6: Final answer
    x = 7,531.55

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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.