Home / 9,368.08-12,927.59-5,390.47

Finding the Fourth Proportional to 9,368.08, 12,927.59 and 5,390.47

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Solution

The fourth proportional to 9,368.08, 12,927.59 and 5,390.47 is: 7,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.08 : 12,927.59 = 5,390.47 : x
  2. Step 2: Convert to fraction form
    9,368.08/12,927.59 = 5,390.47/x
  3. Step 3: Cross multiply
    9,368.08x = 12,927.59 × 5,390.47
  4. Step 4: Simplify right side
    9,368.08x = 69,685,795.49
  5. Step 5: Solve for x
    x = 69,685,795.49/9,368.08
  6. Step 6: Final answer
    x = 7,438.64

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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.